Climatological Report (Daily)
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CDUS43 KLOT 080635
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT TUE AUG 8 2017


...................................

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 7 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         76    256 PM  99    1918  83     -7       83
  MINIMUM         61   1159 PM  50    1994  64     -3       62
                                      1990
  AVERAGE         69                        73     -4       73

PRECIPITATION (IN)
  YESTERDAY        T             2.06 1982   0.15  -0.15     0.00
  MONTH TO DATE    1.80                      1.12   0.68     0.02
  SINCE JUN 1     12.92                      8.27   4.65     9.10
  SINCE JAN 1     31.03                     21.35   9.68    22.74

SNOWFALL (IN)
  YESTERDAY        0.0           0.0    MM   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE JUN 1      T                         0.0    0.0      0.0
  SINCE JUL 1      T                         0.0    0.0      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    3                         0      3        0
  SINCE JUN 1      6                        52    -46       13
  SINCE JUL 1      3                         4     -1        0

 COOLING
  YESTERDAY        4                         9     -5        8
  MONTH TO DATE   46                        63    -17       85
  SINCE JUN 1    582                       511     71      633
  SINCE JAN 1    615                       565     50      707
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     N (20)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    NE (30)
  AVERAGE WIND SPEED     7.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           500 AM
 LOWEST     33           500 PM
 AVERAGE    63

..........................................................


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83       100      1934
 MINIMUM TEMPERATURE (F)   64        52      1976


SUNRISE AND SUNSET
AUGUST  8 2017........SUNRISE   553 AM CDT   SUNSET   801 PM CDT
AUGUST  9 2017........SUNRISE   554 AM CDT   SUNSET   800 PM CDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$




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